Even though a check engine light does not come up it does not mean you don't have trouble codes in the ECU. See if Advance Auto ro Auto Zone has an OBD reader to loan out. You can inquire at their parts counter. I was looking more after I sent you the message and found that the solenoids are refered to by letter, at least in this manual, and I have some information on solenoids A though C and some on D. So if you come across anything that refers to them by letter I can give you some more information.
Changing the fluid can get a sticky solenoid to loosened up as the port holes and tolerances are tight and collect contaminants easily. So, a fluid, and filter if applicable, will sometimes loosen up a sticky solenoid and fix the problem with a little time.
Let me know how it goes and if I can be of any further help.
Saturday, August 17th, 2013 AT 8:19 PM